Corn-planter



(No Model.) 2 Shets-Sh eet 1.

W. P. MARSHALL.

001m PLANTE No. 291.757. v Patented Jan. 8, 1884.

N. PETERS. Plwmlilhogmphur. Washmglcn. D. c.

Wfi I WITNESSES I VE/VTOR (No Model.) 2 Sheets-Sheet 2.

W. P. MARSHALL. 001m PLANTBR.

No. 291,757. Patented J an. 8,1884.

I I ml 0 I j WITNESSES 6 1 I- AftorneyJ.

WILLIAM PARKS MARSHALL, OF INGARI GROVE, IOWA.

CORN-PLANTER.

SPECIFICATION forming part of Letters Application filed August 28, 1883.

ful Corn-Planter, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to that class of corn planters operated through the medium of a spoke-wheel, which is provided with suitable cams attached to the wheel equidistant apart, by which the seed-slide is operated and the rows marked off; and the improvements consist in the novel construction and arrangement of parts, as will hereinafter be more fully described.

In the annexed drawings, Figure 1 is a plan View of a corn-planter with my improvements applied. Fig. 2 is an enlarged view of aseedbox with the attached improvements; and Fig. 3 is a front view, on an enlarged scale, of the wheel.

In the annexed drawings, A represents a portion of a corn-planter. To one side of the planter, near the forward end, is pivotally attached the bar or beam B. Near the rear end of this beam is firmly secured the axle or spindle 0, upon which is mounted, so as to revolve freely thereon, the spoke-wheel D, the construction of which will be hereinafter more fully described. The rear end of the beam or bar B is provided with one or more anti-friction rollers, I), j ournaled within recesses or spaces in the beam. This end of the beam works vertically within a loop or slotted bracket, E, attached to the side of the cornplanter. This pivotal attachment of the beam carrying the spoke-wheel and the free working of the rear end of the beam in the loop accommodates the spoke -wheel to the inequalities of the ground, and the anti-friction rollers I) admit of an easy vertical movement of the beam within the loop. The spokewheel D is provided on its inner side with a plurality of curved springs, D,whieh perform the service of cams. One or more of the spokes of the wheel are provided with coiled springs surrounding the spokes, and carrying at their lower ends suitable blocks or stops, d, loosely passed over the ends of the spokes.

Patent No. 291,757, dated January 8, 1884.

(No model.l

The office of these blocks is to regulate the depth of the penetration of the spokes, so that the seed may be planted only so deep.

On the axle 0, between the side beam, B, and the spoke-wheel, is pivoted the lever H, provided at both ends with the anti-friction rollers e, which are designed to engage with the cams of the spoke-wheel.

To the upper end of the lever H is secured a bar, I, with slotted bar J, that is connected to the feedslide of the seed-boxes. This lever I is properly supported at an intermediate point between the vibrating lever and the feed-slide by means of a bracket, K, with an anti-friction roller secured to the machine.

Operation: The rotation of the spoke-wheel with the cams and the yielding disks or blocks causes one of the cams to strike the upper portion of the pivoted lever, to which the reciprocating seed-slide is connected, and another cam to strike the lower end of the lever to return it to its normal position for the preceding cam, and during this rotation of the spoke-wheel the rows are laid off and the hills marked for the corn to be planted. This alternate striking of the upper and lower ends of the pivoted lever gives the necessary alternate movements to the seed-slides, whereby the planting of the Scorn or other grain at proper distances apart is uniformly regulated.

I reserve the right to vary the construction and arrangement of parts without departing from the spirit of my invention.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-

The combination, with a seed-planter, of a beam or bar pivotally connected at its forward end, and provided at its rear end with anti-friction rollers, the loop for supporting the rear end of the bar, the sp0ke-wheel,with the cams and markers, the pivoted lever, and connecting-bar and seed-slide, substantially as and for the purpose set forth.

' In testimony that I claim the foregoing as my own, I have hereto affixed my signature in presence of two witnesses.

WILLIAM PARKS MARSHALL.

Witnesses:

I. H. HUMPHREYS, A. W. WILLIAMs. 

